# Business Account Requires 2FA
The client can require two factor authentication (2FA )for their Facebook page. Meaning every user must enable 2FA to access their Facebook page and authorize 1send to send messages.
Enabling 2FA is set up per user.
1. Login into user's Facebook account
2. Click on your profile picture in the top right, then click  Settings and privacy.
3. Click Settings.
4. Click Accounts Centre, then click Password and security.
5. Click Two-factor authentication, then click on the account that you'd like to update.
6. Choose the security method that you want to add and follow the on-screen instructions.
{% hint style="info" %}
More details here:
{% endhint %}
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.1send.net/for-agencies/business-account-requires-2fa.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.